isotopes; ions and ionic bonds
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12 Terms
isotopes
atoms of the same element that have the same number of protons but different numbers of neutrons
subatomic particle question
number of protons = 16
number of neutrons = 20
number of electrons = 16+2 = 18
2- charge means it gained electrons
relative atomic mass question
(6×10)+(7×90)=690
690/100=6.9
relative atomic mass formula
relative abundance always equals 100%
hydrated ion
a substance that is chemically combined with water
ionic compound properties
high melting/boililng point
cannot conduct electricity when solid (because theres no mobile ions to carry charge)
can conduct electricity in molten/aqueouss state
negative charge
missing electrons to make a full outer shell
positive charge
extra electrons preventing it from having a full outer shell
ionic bonding
a strong electrostatic attraction between oppositely charged ions
ionic bond question
why ions have a high melting/boiling point
there are strong bonds and a stable lattice structure that requires lots of energy to break apart
dot-and-cross diagram question
Note 
Flashcards (31)